In L4D or L4D2, Versus Mode as an infected can be hard. Here are some tips!

Steps

1

As a Smoker: You'll need to find a nice-high area such as a roof. Make sure it is in the path of the survivors. When you see the group exit, try to hide. Wait for a straggler or a trail blazer who is away from the group. Throw your tongue and grab!

2

As a Boomer: The best spots are either on roofs at reasonable heights or in closets/hidden rooms. Wait until either a horde comes or the entire group is together before puking. Then, run off and wait for your stamina to recharge before vomiting again.

3

As a Hunter: Roofs work the best. Follow the same steps for a Smoker and wait for a lone survivor.

4

As a Jockey: You'll want to stay on the ground, hidden in closets or houses. Wait for either a single survivor or a horde to come. It works best with a horde because you can lead your victim into the havoc while the other survivors are distracted.

5

As a Spitter: Follow same procedure as a Boomer.

6

As a Charger: Make sure you stay on the ground-level hidden. When you see a lone survivor, charge.

7

As a Tank: Go fast and go hard. Just attack the enemies with no mercy, tossing rocks and punching.